Cheapest return flights from Seoul to Brussels in September from $681
AirHint found the following cheapest return flights from Seoul (ICN) to Brussels (BRU) in September 2025 (see full year).
Return flights
| 12 Sep - 19 Sep | Lufthansa | ||
| 10 Sep - 24 Sep | Etihad Airways | ||
| 25 Sep - 13 Oct | Singapore Airlines | ||
| 29 Sep - 12 Oct | Thai Airways | ||
| 25 Sep - 12 Oct | Thai Airways | ||
| 27 Sep - 11 Oct | Singapore Airlines |
Also check the deals for one-way flights from Seoul to Brussels in September.
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
